85xx: Show DDR memory data rate in addition to the memory clock frequency.

Show the DDR memory data rate in addition to the memory clock
frequency.  For DDR/DDR2 memories the memory data rate is 2x the
memory clock.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 4aac599..dcd8817 100644 (file)
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -122,13 +122,16 @@ int checkcpu (void)
        ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9;
        switch (ddr_ratio) {
        case 0x0:
-               printf("       DDR:%4lu MHz, ", sysinfo.freqDDRBus / 2000000);
+               printf("       DDR:%4lu MHz (%lu MT/s data rate), ",
+               sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
                break;
        case 0x7:
-               printf("       DDR:%4lu MHz (Synchronous), ", sysinfo.freqDDRBus / 2000000);
+               printf("       DDR:%4lu MHz (%lu MT/s data rate) (Synchronous), ",
+               sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
                break;
        default:
-               printf("       DDR:%4lu MHz (Asynchronous), ", sysinfo.freqDDRBus / 2000000);
+               printf("       DDR:%4lu MHz (%lu MT/s data rate) (Asynchronous), ",
+               sysinfo.freqDDRBus / 2000000, sysinfo.freqDDRBus / 1000000);
                break;
        }